Hi casulaguy212, thanks for all your comments and suggestions! I'm glad you enjoy playing the game. :)
We definitely have plans to work on map settings, walls etc. There are many features to come! Diplomacy and trading is also a feature many have asked about and that we will add at some point.
At the same time, we're cautious about not making the game too complicated. The game is real-time and not turn-based like Civilization, and it's not as slow-paced as typical 4X or city-building game either. So we have to be careful with what we add.
I love your ideas though! Someone could almost make an entirely new game concept based on them. :D